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In page Transport in Spain:

"

AVE trains run on a network of dedicated high-speed rail track owned and managed by Adif. The first line was opened in 1992, connecting the cities of Madrid, Córdoba, and Seville. Unlike the rest of the Spanish broad-gauge network, the AVE uses standard gauge tracks, permitting direct connections outside Spain. Some TGV-derived trains do run on the broad-gauge network at slower speeds, and these are branded separately as Euromed.[citation needed]